I am going to have to start popping my own... I hate to do that but theirs will kill you!
http://www.dietfacts.com/search.asp?...atre%20popcorn
I.ATE.A.PIE.NET: Healthy 'Diet' Food Reviews
Nutrition Action Healthletter: The top pops
Here is a cut/paste from the above site, they've rated popcorns like you would a movie (I go to AMC):
Some theaters pop in partially hydrogenated vegetable oil, which is better for your heart, and a few use non-hydrogenated oil, which is best (though none are good for your waistline).
X AMC, Edwards, Hoyts, Regal, United Artists (coconut oil.)
R Carmike, CineMark, Cineplex Odeon, Loews, Multiplex, Muvico, Showcase (partially hydrogenated canola oil)
PG Century, GKC (non-hydrogenated canola or sunflower oil)
G Your Theater (assuming you can sneak some in) (air-popped)
I am so disgusted, just disgusted. I feel duped, lied to...

Even the worst microwave popcorn, that I would NEVER purchase is better for me than AMC Popcorn!
I wrote this Saturday ... but just got a chance to alert you now...

That "butter" is usually actually a "butter-flavored oil" that does not need to be refrigerated, and it can contain 14+ grams of fat and 130+ calories per tablespoon (and think of how much they put on there, how it leaks out the bottom of the bag...).